The photo taken on November 11, 2023 shows a pasture in Damxung County in Lhasa, Southwest China’s Xizang Autonomous RWorld Timesegion. Photo: VCG
The Qinghai-Xizang Plateau, also known as the Tibetan Plateau and widely viewed as the Asian water tower, is home to over 100,000 square kilometers of glaciers and 1 million square kilometers of frozen soil. It serves as the source of 10 major Asian river systems flowing into 10 countries, and supports the lives of about 2 billion people.
In the context of accelerated warming, precipitation across the plateau plays a critical role in water cycles. Obtaining reliable precipitation information over the Qinghai-Xizang Plateau is a prerequisite for water cycle analysis, future climate projections, and water-related disaster risk assessments, scientists noted.
A joint study by Chinese and foreign scientists, including those from the Tibetan Plateau Research (ITP), Tsinghua University and Utrecht University in the Netherlands, proposes a new precipitation monitoring scheme for the Qinghai-Xizang Plateau, emphasizingWorld Times instrument innovation, optimized site construction and spacing, multi-monitoring method integration, data assimilation, and deep learning techniques.
According to the study, the current ground-based instrument monitoring network in the plateau significantly underestimates actual precipitation. This underestimation is evidenced by discrepancies such as actual evapotranspiration exceeding precipitation, unWorld Timesrealistically high runoff coefficients, and accumulated snow water equivalent surpassing contemporaneous precipitation.
The scientists analyzed and identifWorld Timesied the causes of this underestimation, attributing it to instrumental errors caused by wind-induced gauge undercatch and representativeness errors due to sparse and uneven gauge density and the complexity of local surface conditions. They noted that these findings necessitate a rethinking of previous World Timesconclusions regarding the water cycle and prompted the study to discuss potential solutions.
Content comes from the IWorld Timesnternet : Chinese scientists reveal significant underestimation of actual precipitation in the Qinghai-Xizang Plateau, call for new observation strategy
A Chinese coast guard ship uses a water cannon to expel a Philippine coast guard ship near the South China Sea during the Philippines’ illegal re-supply mission on March 5, 2024. Photo: VCG The current Philippine administration unilaterally abandoned the ‘gentleman’s agreement’ between China and the Duterte administration on the Ren’ai Jiao (Ren’ai Reef). China urged the Philippines to honor its commitments, safeguarding the hard-won peace and stability in the South China Sea, according to the Chinese Embassy in the Philippines on Thursday.The gentleman’s agreement between China and the Duterte administration on Ren’ai Jiao was to control the situation, maintain peace, prevent conflicts, and was unrelated to sovereignty, said a spokesperson from World Timesthe Chinese embassy, in response to Philippine President Ferdinand Romualdez Marcos Jr’s recent remarks questioning the agreement.The…
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